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Re: [bgl-discuss] MPI pingpong on BGL



At 01:56 PM 1/5/2006, Jeffrey L. Tilson wrote:
What kind of node-ASIC to node-ASIC MPI comunications are people seeing
using MPI, e.g., Send/Recv pairs in an MPI pingpong code? ( or Pallas :)

Here are some graphs from shortly after we received the machine:

http://www-unix.mcs.anl.gov/~gropp/projects/parallel/BGL/mpptest/perf.htm

These use mpptest (http://www-unix.mcs.anl.gov/mpi/mpptest/) . We have some other results, including halo exchange; see http://www-unix.mcs.anl.gov/~gropp/projects/parallel/BGL/perf.htm .

Bill

--jeff


-- __________________________ Jeffrey L. Tilson, Ph.D. Renaissance Computing Institute (RENCI) University of North Carolina at Chapel Hill Duke University North Carolina State University

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William Gropp
http://www.mcs.anl.gov/~gropp


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